/**
 * This file is part of AppStoreBot.
 *
 *  AppStoreBot is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  AppStoreBot is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with AppStoreBot.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
package lu.pragmaconsult.appstorebot.itunes;

import static lu.pragmaconsult.appstorebot.itunes.Constants.AJAX_NAME;
import static lu.pragmaconsult.appstorebot.itunes.Constants.DAILY_NAME;
import static lu.pragmaconsult.appstorebot.itunes.Constants.DATE_LIST_AVAILABLE_DAYS;
import static lu.pragmaconsult.appstorebot.itunes.Constants.DATE_LIST_AVAILABLE_WEEKS;
import static lu.pragmaconsult.appstorebot.itunes.Constants.DATE_NAME;
import static lu.pragmaconsult.appstorebot.itunes.Constants.SALES_URL;
import static lu.pragmaconsult.appstorebot.itunes.Constants.SELECT_NAME;
import static lu.pragmaconsult.appstorebot.itunes.Constants.VIEW_STATE;
import lu.pragmaconsult.appstorebot.BotContext;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpMethod;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.PostMethod;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * TODO: Type comment
 * @author Wilfried Vandenberghe (wilfried.vandenberghe at pragmaconsult.lu)
 */
class FormSalesReportBotState extends AbstractBotState {
	
	private static final Logger logger = LoggerFactory.getLogger(FormSalesReportBotState.class);
	
	/* (non-Javadoc)
	 * @see lu.pragmaconsult.appstorebot.itunes.AbstractBotState#createHttpMethod(lu.pragmaconsult.appstorebot.BotContext, org.apache.commons.httpclient.HttpClient)
	 */
	@Override
	protected HttpMethod createHttpMethod(BotContext context,
			HttpClient httpClient) {
		if(LoggerUtils.isDebugEnabled()) {
			logger.info("viewState             : " + context.getContextAttribute(VIEW_STATE));
			logger.info("dailyName             : " + context.getContextAttribute(DAILY_NAME));
			logger.info("ajaxName              : " + context.getContextAttribute(AJAX_NAME));
			logger.info("dateName              : " + context.getContextAttribute(DATE_NAME));
			logger.info("selectName            : " + context.getContextAttribute(SELECT_NAME));
			logger.info("dateListAvailableDays : " + context.getContextAttribute(DATE_LIST_AVAILABLE_DAYS));
			logger.info("dateListAvailableWeeks: " + context.getContextAttribute(DATE_LIST_AVAILABLE_WEEKS));
		}
		
		PostMethod post = new PostMethod(SALES_URL);

		// Prepare form sales parameters
		NameValuePair ajaxRequest = new NameValuePair("AJAXREQUEST", context.getContextAttribute(AJAX_NAME));
		NameValuePair theForm = new NameValuePair("theForm", "theForm");
		NameValuePair theFormNotNormal = new NameValuePair("theForm:xyz", "notnormal");
		NameValuePair theFormVendorType = new NameValuePair("theForm:vendorType", "Y");
		NameValuePair dateDay = new NameValuePair("theForm:datePickerSourceSelectElementSales", context.getContextAttribute(DATE_LIST_AVAILABLE_DAYS).split(",")[0]);
		NameValuePair dateWeek = new NameValuePair("theForm:weekPickerSourceSelectElement", context.getContextAttribute(DATE_LIST_AVAILABLE_WEEKS).split(",")[0]);
		NameValuePair viewState = new NameValuePair("javax.faces.ViewState:" + context.getContextAttribute(VIEW_STATE), 
				context.getContextAttribute(DAILY_NAME) + ":" + context.getContextAttribute(DAILY_NAME));
		post.setRequestBody(new NameValuePair[] { ajaxRequest, theForm, theFormNotNormal, theFormVendorType, dateDay, dateWeek, viewState });
		
		return post;
	}

	/* (non-Javadoc)
	 * @see lu.pragmaconsult.appstorebot.itunes.AbstractBotState#getNextState()
	 */
	@Override
	protected BotState getNextState() {
		return new ComputeReportDatesBotState();
	}

	/* (non-Javadoc)
	 * @see lu.pragmaconsult.appstorebot.itunes.AbstractBotState#processResponseBody(lu.pragmaconsult.appstorebot.BotContext, org.apache.commons.httpclient.HttpMethod)
	 */
	@Override
	protected void processResponseBody(BotContext context, HttpMethod method) {
		try {			
			// get the view state value
			String state = new HtmlParser(method.getResponseBodyAsStream()).getState();
			context.setContextAttribute(VIEW_STATE, state);
		} catch(Exception e) {
			throw new IllegalStateException(e);
		}
	}

}
